<template>
  <transition name="move">
    <div v-show="showFlag" class="food" ref="foodScroll">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back" @click="back">
            <i class="iconfont">&#xe640;</i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}</span>
            <span class="rating">月售{{food.rating}}</span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span>
            <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cart-control :food="food"/>
          </div>
          <transition name="fade">
            <div @click.stop="addFirst" class="buy" v-show="!food.count || food.count === 0">
              加入购物车
            </div>
          </transition>
        </div>
        <Split/>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <Split/>
        <div class="ratings">
          <h1 class="title">商品评价</h1>
          <rating-select :desc="desc"
                         :only-content="onlyContent"
                         :select-type="selectType"
                         :ratings="food.ratings"
                         @selectRatings="selectRatings"
                         @toggleContent="toggleContent"/>
          <div class="rating-wrapper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType, rating.text)" v-for="rating in food.ratings" class="rating-item">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img :src="rating.avatar" class="avatar" width="12" height="12">
                </div>
                <div class="time">{{rating.rateTime | showDate }}</div>
                <p class="text">
                  <i class="iconfont" :style="{color:rating.rateType === 1? 'rgb(0,160,220)': 'rgb(147,153,159)'}">
                    {{rating.rateType === 1? '&#xe60c;': '&#xe607;'}}
                  </i>
                  <span>{{rating.text}}</span>
                </p>
              </li>
            </ul>
            <div class="no-rating"
                 v-show="!food.ratings || !food.ratings.length">
              暂无评价
            </div>
          </div>
        </div>
      </div>
    </div>
  </transition>

</template>

<script>
  import BScroll from 'better-scroll'
  import CartControl from '@/components/mainTab/cartControl/CartControl'
  import Split from '@/components/mainTab/split/Split'
  import RatingSelect from '@/components/mainTab/ratingSelect/RatingSelect'

  import {formatDate} from '@/common/js/date'

  export default {
    name: "Food",
    props:{
      food: Object
    },
    components: {
      CartControl,
      Split,
      RatingSelect
    },
    filters: {

      showDate: function (value) {
        // 1.将时间戳转成Date对象
        let date = new Date(value);
        // 2.将date进行格式化
        return formatDate(date, 'yyyy-MM-dd hh:mm:ss')
      }
    },
    data(){
      return {
        showFlag: false,
        selectType: 2,
        onlyContent: true,
        scroll: null,
        desc: {
          all: '全部',
          positive: '推荐',
          negative: '吐槽'
        }
      }
    },
    methods: {
      show(){
        this.showFlag = true;
        this.selectType = 2;
        this.onlyContent = true;
        this.$nextTick(() => {
          if(!this.scroll){
            this.scroll = new BScroll(this.$refs.foodScroll,{
              click: true
            })
          }else {
            this.scroll.refresh();
          }
        })
      },
      // 点击隐藏商品详情层，也即是返回商品页
      back(){
        this.showFlag = false;
      },
      addFirst(e){
        this.$emit('foodAdd',e.target);
        this.$set(this.food, 'count',1);
      },
      selectRatings(type){
        this.selectType = type;
        this.$nextTick(() => {
          this.scroll.refresh();
        });
      },
      toggleContent(){
        this.onlyContent = !this.onlyContent;
        this.$nextTick(() => {
          this.scroll.refresh();
        });
      },
      needShow(type, text){
        if(this.onlyContent && !text){
          return false;
        }
        if(this.selectType === 2){
          return true
        }else {
          return type === this.selectType;
        }
      }
    }
  }
</script>

<style scoped lang="stylus">
.food
  position fixed
  left 0
  top 0
  bottom 48px
  z-index 30
  width 100%
  background #fff
  transition all 0.3s linear
  transform translate3d(0,0,0)
  &.move-enter, &.move-leave-to
    transform translate3d(100%,0,0)
  .image-header
    position relative
    width 100%
    height 0
    padding-top 100%
    img
      position absolute
      top:0
      left 0
      width 100%
      height 100%
    .back
      position absolute
      top:10px
      left 0
      .iconfont
        display block
        padding 10px
        font-size 20px
        color #fff

  .content
    padding 18px
    position relative
    .title
      line-height 14px
      margin-bottom 8px
      font-size 14px
      font-weight 700
      color rgb(7,17,27)
    .detail
      margin-bottom 18px
      line-height 10px
      height 10px
      font-size 0
      .sell-count, .rating
        font-size 10px
        color rgb(147,153,159)
      .sell-count
        margin-right 12px
    .price
      font-weight 700
      line-height 24px
      font-size 0
      .now
        margin-right 18px
        font-size 14px
        color rgb(240,20,20)
      .old
        text-decoration line-through
        font-size 10px
        color rgb(147,153,159)
    .cartcontrol-wrapper
      position absolute
      right 12px
      bottom 18px
    .buy
      position absolute
      right 18px
      bottom 23px
      z-index 10
      height 24px
      line-height 24px
      padding 0 12px
      box-sizing border-box
      font-size 10px
      border-radius 12px
      color #fff
      background rgb(0,160,220)
      opacity 1
      transition all 0.2s
      &.fade-enter, &.fade-leave-to
        opacity 0


  .info
    padding 18px
    .title
      line-height 14px
      margin-bottom 6px
      font-size 14px
      color rgb(7,17,27)
    .text
      line-height 24px
      padding 0 8px
      font-size 12px
      color rgb(77,85,93)
  .ratings
    padding-top 18px
    .title
      line-height 14px
      margin-left 18px
      font-size 14px
      color rgb(7,17,27)
    .rating-wrapper
      padding 0 18px
      .rating-item
        position relative
        padding 16px 0
        border-bottom 1px solid rgba(7,17,27,.1)
        .user
          position absolute
          right 0
          top 16px
          font-size 0
          line-height 12px
          .name
            display inline-block
            margin-right 6px
            vertical-align top
            font-size 10px
            color rgb(147,153,159)
            .avatar
              border-radius 50%
        .time
          margin-bottom 6px
          line-height 12px
          font-size 10px
          color rgb(147,153,159)
        .text
          line-height 16px
          font-size 12px
          color rgb(7,17,27)
          .iconfont
            line-height 16px
            margin-right 4px
            font-size 12px

      .no-rating
        padding 16px 0
        font-size 12px
        color rgb(147,153,159)
</style>
